A+C: add additional email address

Change-Id: Ic636be3ffe5c9e9dc0dd8faba7898142f5231d15
Reviewed-on: https://go-review.googlesource.com/122417Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

AUTHORS

@@ -1016,7 +1016,7 @@ Rick Sayre <whorfin@gmail.com>
 Risto Jaakko Saarelma <rsaarelm@gmail.com>
 Rob Norman <rob.norman@infinitycloud.com>
 Rob Phoenix <rob@robphoenix.com>
-Robert Daniel Kortschak <dan.kortschak@adelaide.edu.au>
+Robert Daniel Kortschak <dan.kortschak@adelaide.edu.au> <dan@kortschak.io>
 Robert Dinu <r@varp.se>
 Robert Figueiredo <robfig@gmail.com>
 Robert Hencke <robert.hencke@gmail.com>

CONTRIBUTORS

@@ -1301,7 +1301,7 @@ Rob Earhart <earhart@google.com>
 Rob Norman <rob.norman@infinitycloud.com>
 Rob Phoenix <rob@robphoenix.com>
 Rob Pike <r@golang.org>
-Robert Daniel Kortschak <dan.kortschak@adelaide.edu.au>
+Robert Daniel Kortschak <dan.kortschak@adelaide.edu.au> <dan@kortschak.io>
 Robert Dinu <r@varp.se>
 Robert Figueiredo <robfig@gmail.com>
 Robert Griesemer <gri@golang.org>